The scientist most often credited with the idea that matter can have wave-like properties is:

A. Schrödinger

B. de Broglie

C. Einstein

D. Heisenberg

I believe the correct answer from the choices listed above is option B. The scientist most often credited with the idea that matter can have wave-like properties is de Broglie. He related E=mc^2, E=hf and p=mv in order to acquire the de Broglie wavelength, whose formula λ=h/p where h is Planck's constant and p is momentum of the particle.